// Copyright 2022 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import {
  createContext,
  Dispatch,
  SetStateAction,
  useState,
} from 'react';

type AnchorElNav = null | HTMLElement;

export interface TopBarContextState {
  anchorElNav: AnchorElNav;
  setAnchorElNav: Dispatch<SetStateAction<AnchorElNav>>
}

export const TopBarContext = createContext<TopBarContextState>({
  anchorElNav: null,
  // eslint-disable-next-line @typescript-eslint/no-empty-function
  setAnchorElNav: () => {},
});

interface Props {
  children: React.ReactNode;
}

export const TopBarContextProvider = ({ children }: Props) => {
  const [anchorElNav, setAnchorElNav] = useState<AnchorElNav>(null);
  return (
    <TopBarContext.Provider value={{ anchorElNav, setAnchorElNav }}>
      {children}
    </TopBarContext.Provider>
  );
};
